Document Type : Original Article


1 Department of Heart Surgery, Tabriz University of Medical Sciences, Tabriz, Iran

2 Department of Anesthesiology, Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran


Introduction: Coronary artery bypass grafting (CABG) surgery is associated with a high frequency of allogeneic blood transfusions in CABG patients due to acquired hemostatic complications. However, allogeneic blood transfusion increases the risk of infection, morbidity and mortality, as well as prolonged hospital stay and increased hospital costs. It is important to identify patients who need injections to reduce their risk and minimize the use of allogeneic blood. The aim of this study was to determine the factors affecting the decision of red blood cell transplantation in patients undergoing elective primary CABG.

Material and Methods: This is a cross section search based on reverse data analysis. All patients who underwent elective primary CABG were included in this study. Variables analyzed included age, gender, body weight, pre-hemoglobin (Hb) levels, patient comorbidities, and other medical conditions. Data were analyzed using SPSS software version 20.

Results: 83.4% patients underwent RBC transfusion. Based on multiple logistic regression analysis, age only (odds ratio [OR] = 1.040, 95% confidence interval [CI]: 1.003, 1.001), Hb level (OR = 0.500, 95% CI: 0.387, 0.644, P < 0.001), and extracorporeal circulation time (OR = 1. 013, 95% CI: 1.004, 1.023, P < 0.001) was an important indicator of RBC cycle.

Conclusion: By classifying patients according to the risk of RBC transfusion, high-risk patients can be identified and should be included in blood transfusion programs to reduce the risk of allogeneic infections.


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